Small fix:  modify mpfr_poly/test/t-FHT.c to include mpfr_vec.h
Small fix:  modify mpfr_poly/test/t-FHT.c to include mpfr_vec.h

dsroche/flint2,wbhart/flint2,jpflori/flint2,jpflori/flint2,fredrik-johansson/flint2,jpflori/flint2,dsroche/flint2,fredrik-johansson/flint2,wbhart/flint2,dsroche/flint2,dsroche/flint2,fredrik-johansson/flint2,wbhart/flint2,jpflori/flint2